基于超级电容储能的风力发电技术研究  

Research on Wind Power Generation Technology Based on Super-capacitor Energy Storage System

作　　者：胡国文[1,2] 陈伟[2] 杨根[3] 李超[2] 

机构地区：[1]盐城工学院电气工程学院,盐城224051 [2]江苏大学电气信息工程学院,镇江212013 [3]安徽理工大学电气与信息工程学院,淮南232001

出　　处：《科学技术与工程》2013年第30期9041-9046,共6页Science Technology and Engineering

摘　　要：风速变化具有不可预知性,会导致风电机组输出功率频繁波动,对电网质量产生影响;使用储能装置可以有效改善风电质量。通过在风电系统直流侧母线上并联超级电容储能装置,能实现对风电系统功率的调节,平滑功率轨迹曲线。设计了风电系统最大风能捕获、并网及储能系统功率平抑的整体控制策略,在Matlab/Simulink中搭建系统的仿真模型,仿真结果表明系统能实现前级BUCK最大风能捕获、网侧PWM逆变器单位功率因数并网和超级电容储能装置对风电系统并网功率的调节。实验结果表明所提控制策略的正确性。Wind speed is uncontrollable and unpredictable,and its disadvantage is that wind power generation is intermittent,depending on the weather conditions.In order to improve the quality of wind power,using supercapacitor energy storage device can smooth the output power as the wind speed varies.A super-capacitor storage system paralleling to the DC bus through a bi-directional BUCK-BOOST converter is introduced.A control strategy combining maximum power tracking control,unit power factor control and super-capacitor energy storage control are analyzed and designed.A simulation model under Matlab/Simulink is also constructed to demonstrate the effectiveness of the whole control strategy.Experimental results show its correctness.

关 键 词：超级电容储能装置 最大风能捕获 单位功率因数并网 功率平抑 

分 类 号：TM614[电气工程—电力系统及自动化]